USER´S MANUAL
AIR TO WATER HEAT PUMP
GSH-IRAD
INDOOR UNIT - HYDROBOX
“Originalinstructions”
Basic controls:
For basic controls of the heat pump use graphical touch panel.
Main menu (press button „MENU”)
Elements on display, which are possible to change values, switch ON/OFF or refer to next screen have got orange underlay.
After
pressing element is either displayed referred screen or is displayed panel for variable adjustment.
Appearance of panel depends
on type of variable.
QUICK SETUP
Descriptions of the controls
Winter operation with DHW
On the main screen set icon and to ON (orange colored rectangle in upper right
corner) . In settings set the required DHW temperature and delays of the DHW electric heating.
For 200l water tank set 40min, 300l - 60min, 400l - 90min. Equithermal curve in section pre-set in the
case of radiators T - at -20°C to 50°C, T - at -8°C to 45°C, T - at +5°C to 40°C, T - at +15°C to 35°C,
and in the case of floor heating T - at -20°C to 40°C, T - at -8°C to 35°C, T - at +5°C to 30°C, T - at +15°C to 25°C.
Then adapt your required temperature by automatic correction of equithermal curve.
Winter operation without DHW
On the main screen set icon to ON and icon to OFF . Equithermal curve pre-set as in
the case of „Winter operation without DHW”.
In heated rooms are cold or too warm
For example, if the room temperature is 2 degrees higher than required, enter the automatic correction eq. curve
in object section to -3°C. When the difference in room temperature eg about 1°C lower than required, enter the
correction + 2°C and so on. The maximum correction is +/- 3°C for one insertion. Remember that change takes
effect after a certain time. For floor heating be aware of delays thermal exchanges in the rooms due to changes in
water temperature 3-6 hrs.
Nastavení
Object section
Displays mode of
heating / cooling, object temp.,
circulator state, object state,
main switch operation
heating / cooling
DHW section
Displays temp. of DHW, DHW
circulator state,
heating state,
main switch DHW heating
Overview section
Displays important
temperatures and parameters,
operation states, outdoor unit
power, icon of economic
operation, access to main
menu and expanded overview,
witch contains error history,
measure of supplied power
and more ...
The upper bar displays time, successfully connected Sinclair Route (cloud)
service and Ethernet connection.
Graphs of important values
Outdoor unit temperature, object temperature, output water temperature,
DHW temperature, required output power.
Expanded parameter settings of heat pump. This section allows to set maximal
power of outdoor unit, cooling parameters, Ethernet network settings
and more...
This section allows to set parameters of pool heating and using of secondary
source
DHW heating parameter settings. This section allows set temperature of DHW,
heating and circulation time schedule, follow energy tariff for DHW heating,
bivalent source state and more...
Heating / cooling parameters settings. This section allows to set equithermic
curve, attenuation, follow energy tariff for heating / cooling, required
temperature of object, bivalent source state and more...
Main screen - summary. Used for switch on / off Heat pump, DHW heating.
Displays the overview of most important values and allows entry to states and
errors screen (button More... → State, errors) and entry to screen of supplied
power measure (button More... → Calorimeter)
Dear consumer,
thank you for purchasing the heat pump GSH-IRAD. We hope you will be satisfied with the device which shall
bring heat comfort to your house.The pump is a quite complicated device therefore pay high attention to this
manual,please.
The manual shall make you familiar with using, placement, construction and further
information.
IMPORTANT NOTICE
The heat pump GSH-IRAD in intended for reduced electricity rates for heat pumps (czech d56) or for
convector heating rate (czech d46). A
permission of an appropriate distributor has to be obtained before
connecting to the energy grid.Only authorized company is allowed to carry out installation, connecting,
and
service.
The warranty card is not valid without authorization.
1.COMPLETENESS
The GSH-IRAD heat pump is a split
type.Indoor unit:
GSH-IRAD
Outdoor unit:
GSH-XXEARD
Outdoor temperature sensor
DHW temperature sensor
User manual
Warranty card
2.APPLICATION
Heat pumps GSH-IRAD are intended for heating of houses or small industrial buildings.
The product shall be
connected to low-temperature heating system, such as floor heating, wall or ceiling heating. Connecting of wall
heating convectors is possible but maximum temperature of heating water is limited to 50 °C. (60 °C at type HP)
However, efficiency is worse at this temperature (COP
decreases). Heat pump can be also used for cooling.
At cooling mode is output water temperature limited to condensing temperature. Heat pump is not suitable for
cooling with water temperature under condensing temperature e.g. fancoil. Low temperature water causes
condensation on inner equipment of indoor unit and thereby the damage. Suitable cooling system cooling ceiling,
where condensation does not occur.
3.
PRODUCT
DESCRIPTION
Basic construction elements:
- Outdoor unit
It is made from a steel tin with anti-rust treatment which is reached by a powder varnish. Its heart is made by
inverted double level compressor which is a novelty in the field of heat pumps guaranteeing reliability and
longevity. The unit also contains an exchanger with anti-rust treatment and 30 years lifetime, fans with variable
revolutions, electronic expansion valve, controlling and measuring elements.
- Indoor unit
Its main part is a board heat exchanger refrigerant / water. Another substantial part is TECO regulator with
sophisticated software which controls operation of the pump and also controls temperature in the building. The
regulator provides cascade regulation of the heat pump with bivalent supply. There is also a possibility to connect
to the PC via web interface for comfortable and effective control of the heat pump. The unit also contains
protecting, measuring and regulation elements.
i
i
4. SAFETY
The heat pump is an electrical appliance operating with voltage of 400V! It can be installed and maintained only
by an authorized electrician. In case of fire do not extinguish with water or a foam extinguisher. Use only powder
or carbon-dioxide extinguisher!
In case of refrigerant leakage turn off all circuit breakers placed inside of indoor unit. The refrigerant R410A is
inflammable, non-explosive, non-toxic. Never try to stop the leakage on your own, as temperature very low (up to
-50 °C). In case of a leakage indoor provide fresh air. If you breathe in its fumes or fire exhausts, take the injured
person to the fresh air and call emergency. If the refrigerant is spilled on your skin, dry the place and keep it warm
(e.g. by a duvet). If the refrigerant spills to your eyes, rinse with plenty of water and call emergency.
In case of fire disconnect from the power grid and extinguish by carbon-dioxide extinguisher.
In case of leakage of the heating water, switch off all circuit breakers placed inside of the indoor unit and contact
the maintenance company written on the indoor unit label.
When manipulating with cooling pipes (maintenance) use skin and eyes protection aids (gloves, glasses).
Do not insert your hands or other subjects to the fan of outer unit, there is a threat of a serious injury!
Do not impose air vaporing of the outdoor unit for a long time, there is a threat of hypothermia!
Please follow the conditions set by standards:
EN 378-4:2008, art. 6.5
All parts of the cooling device, e.g. refrigerant, oil, filter, dehydrator, insulation material have to be recuperated,
recycled, and/or disposed in an ecological way in connection with maintenance, repairing, or discarding.
EN 378-4:2008 art. 6.2
Used refrigerant which is not intended to be re-used has to be treated like material intended for safe disposal. It
must be prevented from emissions to the environment.
EN 378-4:2008 Attachments A
Used recuperated oil from the cooling device which cannot be regenerated has to be stored in a suitable separate
container and has to be treated like material intended for safe disposal.
EN 378-4:2008 art. 6.5
All components of the cooling device which contain the refrigerant and the oil have to be disposed in a proper
way.
EN 378-4:2008 art. 6.6
All activities of recuperation and refrigerant re-using and its source have to be recorded in the cooling device diary
(see EN 378-2).
5. STORAGE
AND
TRANSPORTATION
CONDITIONS
Outdoor unit GSH-XXERAD
Dust-free, non-aggressive enviroment
Temperature - 20 - +35 °C
Humidity max 90%
Outdoor unit has to be stored and transported vertically in an original package, avoid damage of fragile
parts
Indoor unit GSH-IRAD
Dust-free, non-aggressive environment
Temperature +5 to +45 °C
Humidity max 70%
6. PRINCIPLE OF OPERATION
A
heat pump is a device gaining low-temperature energy from a selected source and transforming it to a higher
temperature level.
A
heat pump air-water system utilizes heat of surrounding air. Its core is a high-performance
compressor which presses down the refrigerant in a hermetic circuit and expands it while using convenient
features of the cooling medium. We use ecological refrigerant R410. On the input side (outdoor unit and the
exchanger) outdoor air is pushed through heat transfer surface of exchanger by a fan. Inside of this exchanger
circulates refrigerant, which passes through expansion valve, and rapidly cooled to a temperature lower than the
ambient air. Refrigerant in exchanger heats up (e.g. from minute 17 to minute 10) and heat recovered is stored in
refrigerant.
Then is "compressed" by a compressor and distributed to the condenser (indoor unit). Inside of plate
condenser of indoor unit refrigerant condenses and it transfers the heat into heating medium (heating water).
Thereafter condensed refrigerant goes into expansion valve and the cycle repeats itself.
7.
INSTALLATION
The device has to be mounted by an authorized company otherwise the device can be damaged or an injury can
be caused.The indoor unit shall be fixed on the wall. Free access to the controlling and protection elements has to
be provided (see the picture below). The outdoor unit shall be fixed by screws to the steel base supplied by the
producer. The steel base is required for a proper defrost of the exchanger. The base shall be fixed to ideally to a
concrete ground whose dimensions avoid falling the unit over during a gale.
Free circulation of air and maintenance access shall be provided (see the picture below). Be aware that outdoor
unit noise might disturb in the surrounding area and avoid it following proper standards.
500 mm
100 mm
650
980
395
427
788
1345
572
900
412
378
340
1326
Outdoor unit GSH-70/80ERAD
Outdoor unit GSH-110/130ERAD
＞
1000
＞
2000
＞
500
＞
500
＞
500
＞
50
0
＞
2000
of 4,5MPa and temperature is up to -50 °C.
The refrigerant is under pressure . There is a threat of a serious injuryDo not try to connect the circuit on your own!
ARNING!W
8. CONNECTING OF REFRIGER
TA
ION CIRCUIT
Only authorized service can connect he refrigeration circuit (see Installation).
BIVALENT SOURCE
Heat pumps GSH-IRAD contain integrated electric boiler of capacity 6kW.
The boiler compensates power loss
of the heat pump at extreme conditions. When external bivalent boiler is used, it is necessary to equip it with
all
safety elements (temperature protection, pressure valve, el. protection).
The added bivalent source is
controlled
by the heat pump only passively. It means it must contain its own regulation so that heating water
temperature is not
exceeded, e.g. for the floor heating.
9. FIRST START OF THE HEAT PUMP
It is necessary to put water into the circuit before you launch the heat pump. Reach basic pressure 1 - 1.5 bar.
According to water column add 0.1 bar for every meter height of the heating system. Next, it is necessary to bleed
the circuit thoroughly. The bleeding is done by the bleeding screw of the circuit pump or, alternatively, on the upper
threaded piece of the board exchanger. When the circuit pump is switched on, the board exchanger shall be bled
thoroughly. After that its noise is decreased. The circuit pump shall run for 10 minutes at least before the
compressor is switched on. After watering and bleeding electric equipment shall be used.
Description of protection elements of the heat pump
BIVALENT SOURCE - protection of bivalent source
OUTDOOR UNIT - protection of outdoor unit
TECHNOLOGIE - protection of technology (regulator, 3-way valve, circ. pump.....)
DHW EL. HEATING - protection of DHW electric heating
EMERGENCY STOP
when refrigerant leak
BIVALENT SOURCE
OUTDOOR UNIT
DHW EL. HEATING
TECHNOLOGY
The heat pump breakers; one phase type
Graphs of important values
Outdoor unit temperature, object temperature, output water temperature,
DHW temperature, required output power.
Expanded parameter settings of heat pump. This section allows to set maximal
power of outdoor unit, cooling parameters, Ethernet network settings
and more...
This section allows to set parameters of pool heating ande using of secondary
source
DHW heating parameter settings. This section allows set temperature of DHW,
heating and circulation time schedule, follow energy tariff for DHW heating,
bivalent source state and more...
Heating / cooling parameters settings. This section allows to set equithermic
curve, attenuation, follow energy tariff for heating / cooling, required
temperature of object, bivalent source state and more...
Main screen - summary. Used for switch on / off Heat pump, DHW heating.
Displays the overview of most important values and allows entry to states and
errors screen (button More... → State, errors) and entry to screen of supplied
power measure (button More... → Calorimeter)
10. Settings and service of regulator GSH-IRAD Unity Color
Basic controls:
For basic controls of the heat pump use graphical touch panel.
Main menu (press button „MENU”)
Elements on display, which are possible to change values, switch ON/OFF or refer to next screen have got orange underlay.
After
pressing element is either displayed referred screen or is displayed panel for variable adjustment.
Appearance of panel depends
on type of variable.In section of object, DHW, graphs, settings and more are variables arrayed to vertical lists divided to parties.
Description of the control panel GSH-IRAD
Nastavení
Description of sections
- Overview - main screen
Object section
Displays mode of
heating / cooling,
object temp.,
circulator state,
object state,
main switch
operation
heating / cooling
DHW section
Displays temp. of
DHW, DHW
circulator state,
heating state,
main switch DHW
heating
Overview section
Displays important temperatures and
parameters, operation states, outdoor
unit power, icon of economic operation,
access to main menu and expanded
overview, witch contains error history,
measure of supplied power
and more ...
The upper bar displays time, successfully connected Sinclair route (cloud)
service
and Ethernet connection.
Heatpump operation. For heating / cooling / DHW heating is used heat pump.
Secondary source operation. For heating is used secondary source. For DHW heating is used heat pump.
Defrost. Outdoor unit defrosts. DHW heating is interrupted.
Too low temperature of outdoor air. For heating is fully used bivalent source (internal electric heater).
Economic operation. Displayed when output water temp. is lower than 45°C and the power is lower than 50%.
DHW heating is blocked by time schedule
Antilegionella. DHW tank is heated by electric heater because of legionella disinfection
e
Status icons
Meaning of text shortcuts
Attenuation - attenuation is active, parameter settings in section Object
High tariff! - operation is blocked by electricity supplier
DHW heat. - DHW heating by heat pump
DHW el. heat. - DHW heating by electric heater
Drying - floor drying program is active
Pool heat. - pool is heated by heat pump
Bival 1st. 2st. - bivalent source operation (1st. - first stage (2kW), 2st. - second stage (4kW))
Outd. T - outdoor air temperature
Outp. T - output water temperature
Equi. T - temperature computed by equithermal curve for primary circuit
Circ. - circulator power
Obj. T - object temperature
IQ corr. - IQ correction - correction applied to equithermal curve by object temperature
Section - More...
2. circ - secondary circuit mixing valve opening
2. equi. - temperature computed by equithermal curve for secondary circuit
2. outp. - output water temperature for secondary circuit
Outdoor temp. - outdoor temperature
Comp. - compressor speed
Vent. - ventilator speed
Hours in use - number of operation hours of heat pump
Section - Calorimeter
Water flow - water flow through indoor unit
Actual power - actual power supplied by heat pump
Supplied power - power supplied since last calorimeter reset
Circulator power - actual circulator power
Water pressure - water pressure inside of system
Out./In. - water temperature output / input
Section - Status Errors
Code of states and errors - four-digit code (read from left)
1. digit: 1 - Freeze protection (output water temperature dropped below safe limits)
2 - Insufficient water flow (water flow dropped below safe limits)
3 - Outdoor unit disorder
4 - Low water pressure (water pressure dropped below 0,9 Bar)
5 - Faulty temperature sensor MX (communication unit)
2. digit: 1,2 - Faulty output water temperature sensor
3,4 - Faulty input water temperature sensor
3. digit: 1,2 - Faulty pool temperature sensor
3,4 - Faulty secondary circuit temperature sensor
4. digit: Faulty outdoor temperature sensor 1,2 -
3,4 - Faulty object temperature sensor
5,6 - Faulty DHW temperature sensor
7,8 - Faulty accumulatice tank temperature sensor
First two digits from left indicate critical error, in which is heat pump operation stopped or limited.
Autoreset - Function of error autoreset. If the error disappears, heat pump is again put into operation. This could
happen maximum 5 times, autoreset function is deactivated thereafter.
Error history- Error history records last 10 errors.
Description of sections
- Overview - main screen
Description of sections
- Object
pg. 1 Follow energy tariff - follow electricity supplier energy tariff for heating / cooling of object
Mode - heating / cooling - heating / cooling mode switch
Use an object sensor - switch specifies, if an object temperature sensor is used for equithermal curve correction
(IQ equitherm)(for this option must be indoor temperature sensor connected)
Required T of object - target object temperature for IQ equitherm and target object temperature for cooling
Required T of cooling water - required cooling water temperature; heat pump is designed for cooling above
condensing temperature (cooling ceilings, etc.)
pg. 2
Output water correction
- correction, which is applied to actual computed value of equithermal curve; it is used for
short-term output water temperature correction (e.g. to cover unexpected energy loss or profit)
IQ correction gain
- If the indoor temperature sensor is used for object temperature regulation, the equithermal curve
is corrected by IQ correction function.
This function must be always set correctly.
IQ correction
- displays actual computed value of IQ correction
IQ correction = ((Object
T
- Required
T
of object) * IQ correction gain) + temp. computed by equithermal curve
Prim. equitherm. T
- actual temperature computed by equithermal curve for primary circuit and access to equithermal
curve settings
Equithermal curve - name explanation
Equithermal regulation is the kind of temperature regulation, where output water temperature from heat source
(heat pump) is set by outdoor temperature.
The lower outdoor temperature means higher output water
temperature. It deliver significant savings in conjunction with a heat pump, which quickly lose efficiency as the
heating water temperature rises. If the equitermal regulation is properly set up guarantees temperature comfort
in the rooms in the form of temperature stability without fluctuations.
In GSH-IRAD heat pump are used two tools for comfort settings of equithermal curve:
1. Neo Equitherm -
Automatic correction write down desired adjustment of heating water temperature without you
have to think about which value and how much to change.
2.
IQ
Equitherm -
Automatic fine tuning of equithermal curve by difference of required and actual temperature of living
space. This tool is suitable for heating systems with good dynamics (radiators, fancoils, ceiling heating, etc.)
At
heating systems with bad dynamics (floor heating, wall heating) is recommended to use regulation by standard
equithermal curve only .
The recommended procedure for setting equithermal curve:
1.
Set default values of heating water of equitremal curve approximately as follows:
2. For example, if the room temperature is 2 degrees higher than required, enter the automatic correction eq. curve in
object section to -3°C. When the difference in room temperature eg about 1°C lower than required, enter the
correction + 2°C and so on. The maximum correction is +/- 3°C for one insertion. Controller itself modifies
equithermal curve by actual outdoor temperature. If another correction is needed, you enter it the same way. In
this manner you set all the equithermal curve and another change will not be necessary. Remember that change
takes effect after a certain time.
3. If the equithermal curve is set correctly, you can use IQ equitherm, which monitors set and actual temperature of
room and in case of difference automatically changes heating water temperature. It is suitable to cover
unexpected temperature gain (sun, fireplace, more people in room, etc.) or losses (wind, higher humidity of
outdoor air, etc.).
Correct settings of equithermal curve of heat pump is very important and benefit for really noticeable cost savings for
heating.
Floor heating:
outdoor temp. (fixed value) heating water temp.
-20°C 38°C
-7°C 33°C
6°C 28°C
19°C 22°C
Radiators:
outdoor temp. (fixed value) heating water temp.
-20°C 55°C
-7°C 45°C
6°C 35°C
19°C 23°C
Description of sections
- Object
pg. 2 Sec. equitherm. T - actual temperature computed by equithermal curve for secondary circuit and access to
equithermal curve settings (same principle as the primary circuit)
Attenuation time
schedule
- attenuation settings for output water temperature and potential outdoor unit power limit
after a certain time.
Two time zones for every day. Inside of the time zone heat pump works normally and
outside of time zone is in attenuation. When attenuation is active (outside time zone), output water temperature
is decreased by the value set on last page of attenuation time schedule. If the attenuation si set to 0°C, time
schedule have not got any influence to output water temperature except outdoor unit power (if is enabled).
Outdoor unit power limit you can set in Settings -> Outdoor unit max power and switch Only in the attenuation
must be set to ON.
pg. 1
Required DHW temperature
- required DHW temperature (recommended 44-48 °C)
Required DHW hysteresis TUV
- required hysteresis (define temperature difference when starts DHW heating)
DHW el. heating delay
- define time to DHW heating by heat pump; after this time is is DHW heated by electric
heater and heat pump is used for object heating.
Disinfection
-
switch ON / OFF DHW tank disinfection; on a fixed time (Saturday 1:00 - 10:00) tank is heated by
electric heater to selected temperature
Required
DHW
desin. temp.
- required tank temperature for legionella disinfection (min 60°C)
Follow en. tariff for
DHW
heating
-
DHW heating is blocked by electricity supplier high energy tariff
pg. 2 DHW circulation - DHW circulator operation control (if is installed)
Circulation time schedule - DHW circulator time schedule (two time zones per day)
DHW heating time schedule - DHW heating time schedule (one time zone per day)
Graphs of important values
pg. 1 Output water
pg. 2 Required power
pg. 3 Outdoor temperature
pg. 4 DHW temperature
pg. 5 Object temperature
- DHW
- Graphs
Description of sections
- Settings
pg. 1 Current limit per 1 phase - at one phase units may experience overloading when runs together with bivalent source;
this function cause that first stage of bivalent source will not be used for bivalent operation
Secondary circuit
- define if the secondary circuit control is used (external mixing valves)
Outdoor unit max power
- enable to set outdoor unit maximal power (mainly used for noise reduction)
Only in the attenuation
- outdoor unit power limit is active only when attenuation is active
Bivalent operation
- if the outdoor temperature is lower than this limit, for heating is used bivalent source only
Cooling water
- output water temperature in cooling mode (keep temperature above dew point (ca. 18°C and more)
is necessary
pg. 2 Date / time - date and time settings
Webserver - name - webserver login name
Webserver - password - webserver login password
Saved data - heat pump operation saved data (access is possible only from PC)
Network settings - ethernet network connection settings
pg. 3 Service access
- access only for service engineer
pg. 1 Secondary source - enable use of secondary source (solid fuel boiler, solar panel, etc.)
Secondary source tank temp. - actual temperature in secondary source accumulation tank
Secondary source hysteresis - if the accumulation tank temperature is higher than temperature computed by
equithermal curve + hysteresis, the heat pump is stopped and secondary circuit starts. Thereby is heat
transferred from accumulation tank to object.
Pool - pool heating switch ON / OFF
Pool temperature - actual pool temperature
pg. 2 Required pool temperature - required pool temperature
Required pool hysteresis - pool heating hysteresis
Temp. of pool heating water - temperature of output water for pool heating
Pool heating time schedule - time schedule for pool heating (one time zone per day)
- More
10. SERVICE
EXTENSIONS
POSSIBILITIES
INTERNET
INTERNET
WI-FI
WI-FI
ETHERNET 100Mbit FD
WEB SERVER SERVICE
To connect to the heat pump web site the controller must be plugged into an Ethernet network and configured
correctly. Then you can access the web interface from the computer Internet browser with support of XML standard.
Enter IP address of heat pump into your browser address bar. The computer must be on the same physical Ethernet
network. If you want to control heat-pump from the Internet network, contact your internet provider. The default IP
address of a heat pump is "192.168.134.176". The username is "eneore" and password is "eneore". This address
and other settings can be changed in the "Settings" in the heat pump controller.
Operation of the heat pump via a Web server control is intuitive and has the same character as the control panel of
the controller.
Sinclair Route is new service of GSH-IRAD heat pump, which secure user access to web server through the
Internet network without need of public IP
address and exactly router mapping.
The heat pump needs only
Internet
connection as well as any computer.
For GSH-IRAD heat pump connection to Sinclair Route, you have to contact yours heat pump supplier, or apply
for opening an account by email at [email protected]. Sinclair Route is a paid service.
After paying a
one-time fee you will receive user name and password, which is needed to insert to heat pump web server
settings(Settings ->Network settings).
IMPORTANT NOTICE
That the
Sinclair
Route service is available, is needed to router, which is used for heat pump
Internet
connection,
have got enabled outgoing TCP port 8080.
SINCLAIR ROUTE SERVICE
12. MAINTENANCE
This heat pump because of its construction requires really low maintenance. The basic maintenance will be
provided by service company once a year. During this service will be checked all crucial parts of the heat pump.
Especially the amount of refrigerant in circuit and refrigerant circuit function.
It´s important to check outdoor unit exchanger. You can clean it using garden washer with hot water. This way you
will clean it from raid of insects and any ice.
Don´t use high-pressure cleaners and any mechanical aids like brush etc. The exchanger is very soft
and could be damaged. Before cleaning of exchanger switch off the main circuit breaker in inside unit
The inside unit needs minimal maintenance. Use a damp cloth for cleaning its top cover and follow caution if the
heat pump is running and energized. We recommend to do indoor unit maintenance outside the heating
season.
Check an activity of circulator before the heating season. Especially if it is not jammed. Once a year let
checked expansion vessel function, safety valve and heating water filter clogging.
You should better leave all these jobs to service company..
Disconnect heat pump from the mains voltage before you remove its cover. In other case threatening
injuries and eventually death because of electric shock.
circulator
expansion tank
34
14. PROTECTIVE FUNCTION
Protective
function
Description
Note /
variable
Freeze
protection
Static (output water
temperature lower than 5°C)
If the indoor unit is connected to power
supply, output water temperature
is monitored. When it is lower then 5°C,
so circulator and first stage of bivalent
(2 kW) are switched ON. When temperature
exceeds 5°C, protection is switched OFF.
This protection is active also when heating /
cooling is not switched ON. Protection is solid
and works only when indoor unit is connected
to power supply and breaker of technology
is switched ON. Outdoor unit is not used.
During operation (adjustable
in service access)
When during heating temperature become
lower than set temperature (15°C default),
outdoor unit is shut down. Output water
heating takes over bivalent source. After
exceeded output water temperature of 15°C,
bivalent source continues in heating for
another 30 minutes. Then heating control
continues in the usual manner. This protection
is mostly activated when defrost and water
flow is insufficient (eventually when is low
energy accumulated inside of system).
T freeze
protect
- service
access
Error autoreset
max. 5 times
Flow control Flow monitoring by outdoor
unit power
For compliance declared effectivity
and ensuring safe operation sufficient water
flow is necessary. Minimal water flow
is defined by relationship among outdoor unit
power and required power of circulator.
Values of minimal water flow are in graph
of minimal water flow for different types of
units on page 32.
Outdoor unit
power
- service
access
Error autoreset
max. 5 times
Critical flow monitoring
200 l / hr
If during circulator operation water flow falls
below 200 l/hr (fixed value), critical error
is signalized and automatic circulator bleeding
program is started. Bleeding occurs
cyclically,10 seconds stop, 10 seconds 100%
of power until water flow is restored.
Flow change during defrost
and cooling
During defrost is water flow automatically
increased to 100%. When cooling, circulator
is not controlled proportionally, but always
running at full capacity 100%.
Water pressure
control
Heating / cooling water
pressure control
(adjustable in service access)
If water pressure falls below defined level,
critical error is signalized and heat pump
operating is stoped.
Min. water
pressure
- service
access
Error autoreset
max. 5 times
35
Protective
function
Description
Note/
variable
Sensor control Critical sensors - output
water, input water
If temperature sensor is out of range (-50 to
120°C) critical error is signalized and heat
pump stops operation.
Error autoreset
max. 5 times
Other sensors Error is signalized, but have not got any
influence to primary heat pump operation.
Only the relevant sections of control system
are deactivated. E.g. if DHW temperature
sensor is faulty so DHW heating
is deactivated.
Outdoor unit
error
Outdoor unit reports error Error is signalized, but have not got any
influence for primary heat pump operation.
If the heat pump does not supply power,
bivalent source is used automatically.
Preheat
compressor
Compressor preheat after
power outage
After voltage restoration is used bivalent
source for limited time (settings at service
access). Outdoor unit is in compressor
preheat mode. In default mode is not active
(zero time is set). In the standard installation
is not required to use.
At installations with often power cut
is recommended to set compressor preheat.
Preheat comp.
- service
access
Output water
temperature
limits
Limitations of range of water temperature
user settings (default 20 to 60°C).
Minimal
temperature of
output water /
Maximal
temperature of
output water
- service
access
Compressor
restart
Compressor protection
against frequent starts
When supplied power is higher than object
loss, the heat pump began cycling.
This function protect unit against frequent
starts of compressor.
(default settings: 10 min / 5%)
Compressor
restart,
Compressor
restart
threshold
- service
Hysteresis
cooling water
limit
Protection against low water
temperature in cooling
If cooling water temperature falls below set
temperature reduced by temperature
of hysteresis cooling water limit, outdoor unit
stops operation and cooling is interrupted.
T Hysteresis
cooling water
limit
- service
access
Autoreset max. 5
errors
Autoreset limitations If the critical error repeats 5 times, error
autoreset is deactivated and the heat pump
goes to stop state. Display the last fault
Error autoreset
max. 5 times
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